.dark-mode {
    .dd-empty,
    .dd-placeholder {
        background: darken($dark-bg-color, 5%);
    }
    .dd3-handle {
        background-color: $dark-bg-color;

        &:hover {
            background: darken($dark-bg-color, 5%);
        }
    }

    .dd-dragel {
        background-color: $dark-bg-color;
    }

    .dd-collapse,
    .dd-collapsed .dd-expand {
        color: $gray-200;

        &:hover {
            color: $white;
        }
    }
}

.dd {
    position: relative;
    display: block;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 13px;
    line-height: 20px;
}

.dd-list {
    display: block;
    position: relative;
    margin: 0;
    padding: 0;
    list-style: none;
}

.dd-list .dd-list {
    padding-left: 30px;
}

.dd-item,
.dd-empty,
.dd-placeholder {
    display: block;
    position: relative;
    margin: 0;
    padding: 0;
    min-height: 20px;
    font-size: 13px;
    line-height: 20px;
}

.dd-handle {
    display: block;
    height: 30px;
    margin: 5px 0;
    padding: 5px 10px;
    color: #333;
    text-decoration: none;
    font-weight: bold;
    border: 1px solid #ccc;
    background: #fafafa;
    border-radius: 3px;
    box-sizing: border-box;
}

.dd-handle:hover {
    color: #2ea8e5;
    background: $white;
}

.dd-item > button {
    position: relative;
    cursor: pointer;
    float: left;
    width: 15px;
    height: 20px;
    margin: 5px 0;
    padding: 0;
    text-indent: 100%;
    white-space: nowrap;
    overflow: hidden;
    border: 0;
    background: transparent;
    font-size: 12px;
    line-height: 1;
    text-align: center;
    font-weight: bold;
}

.dd-item > button:before {
    display: block;
    position: absolute;
    width: 100%;
    text-align: center;
    text-indent: 0;
}

.dd-expand {
    display: none;
}

.dd-collapsed .dd-list,
.dd-collapsed .dd-collapse {
    display: none;
}

.dd-collapsed .dd-expand {
    display: block;
}

.dd-empty,
.dd-placeholder {
    margin: 5px 0;
    padding: 0;
    min-height: 30px;
    background: #f2fbff;
    border: 1px dashed #b6bcbf;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
}

.dd-empty {
    border: 1px dashed #bbb;
    min-height: 100px;
    background-color: #e5e5e5;
    background-size: 60px 60px;
    background-position: 0 0, 30px 30px;
}

.dd-dragel {
    position: absolute;
    pointer-events: none;
    z-index: 9999;
}

.dd-dragel > .dd-item .dd-handle {
    margin-top: 0;
}

.dd-dragel .dd-handle {
    box-shadow: 2px 4px 6px 0 rgba($black, 0.1);
}

.dd-nochildren .dd-placeholder {
    display: none;
}

.dd-dragel > .dd3-item > .dd3-content {
    margin: 0;
}

.dd3-item > button {
    margin-left: 30px;
}

.dd-empty,
.dd-item,
.dd-list,
.dd-placeholder {
    display: block;
    position: relative;
    margin: 0;
    padding: 0;
}

.dd-list {
    margin-left: 10px;

    .dd-list {
        padding-left: 1em;
    }
}

.dd-collapsed .dd-list {
    display: none;
}

.dd-handle {
    display: block;
    height: 100%;
    cursor: move;
    margin: 1em 0;
    padding: 0.5em 0;
    transition: $trans;
    text-decoration: none;
    font-weight: 400;
    background: $primary;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
}

.dd-item {
    transition: background-color $trans;

    &:hover {
        background-color: rgba($warning, 0.08);
    }

    > button {
        position: absolute;
        cursor: pointer;
        float: left;
        left: -20px;
        width: 25px;
        height: 20px;
        margin: 7px 0;
        padding: 0;
        text-indent: 100%;
        white-space: nowrap;
        overflow: hidden;
        border: 0;
        background: $white;
        border-radius: 1em;
        font-size: 10px;
        line-height: 1;
        text-align: center;
        font-weight: bold;

        &:before {
            content: '\f067';
            display: block;
            position: absolute;
            width: 100%;
            text-align: center;
            text-indent: 0;
            font-family: 'Font Awesome 5 Free';
        }

        &,
        &[data-action="collapse"]:before {
            content: '\f068';
        }
    }
}

.dd-dragel {
    position: absolute;
    pointer-events: none;
    z-index: 9999;
    background-color: $white;
    padding: 0.2em 0.2em 0.3em;
    margin-left: -0.2em;
    margin-top: -0.2em;
    border-radius: 10px;
    box-shadow: 0 10px 10px 0 rgba($black, 0.25);
}

.dd-dragel > .dd-item .dd-handle {
    margin-top: 0;
}

.dd-dragel .dd-handle {
    -webkit-box-shadow: 2px 4px 6px 0 rgba(0, 0, 0, .1);
    box-shadow: 2px 4px 6px 0 rgba(0, 0, 0, .1);
}

.dd-dragel {
    & > .dd-item:first-child {
        .dd-handle {
            background-color: $primary;
        }
    }
}

.dd-hover > .dd-handle {
    background: $primary !important;
}

.dd3-content {
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    transition: $trans;
    min-height: 2em;
    margin: 0.5em 0;
    padding: 0.2em 1em 0.2em 2.5em;
    color: inherit;
    text-decoration: none;
    font-weight: 400;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    border-bottom: 1px solid $gray-400;
    cursor: default;

    .control-button {
        min-width: 4rem;
    }
}

.dd3-handle {
    position: absolute;
    margin: 0;
    left: 0;
    top: 0;
    cursor: move;
    width: 18px;
    text-indent: 100%;
    white-space: nowrap;
    overflow: hidden;
    border-radius: 10px 0;
    background: $gray-400;
    color: $white;

    &:before {
        content: '≡';
        display: block;
        position: absolute;
        left: 0;
        top: 0.3rem;
        width: 100%;
        text-align: center;
        text-indent: 0;
        font-size: 1em;
        font-weight: normal;
    }

    &:hover {
        background: $primary;
    }
}
